Stapler



FIG. 1 is a top front perspective view of a stapler;

FIG. 2 is a front elevation view of the stapler of FIG. 1;

FIG. 3 is a left side elevation view of the stapler of FIG. 1;

FIG. 4 is a right side elevation view of the stapler of FIG. 1;

FIG. 5 is a top plan view of the stapler of FIG. 1; and,

FIG. 6 is a bottom plan view of the stapler of FIG. 1. 

The ornamental design for a stapler, as shown and described. 